Pressure filters – UFI Filters Hydraulic Division

Main-line,
high efficiency filtration

Application:

The Pressure Line Filters is an essential part in most hydraulic systems. When the hydraulic components are sophisticated, with close tolerances and a regulation function (not simply that of control) the use of filters in the pressure lines is a must.

Thanks to the advanced technological features of the filter materials and the controlled production system used to manifacture the filter elements, UFI pressure filters ensure the fluid cleanliness to be within the required values thus giving protection against faulty operation or machine downtime. For these reasons, the specification of UFI pressure filters represent the best protection for your investment.

Thanks to their efficiency and to their location the UFI pressure filters safeguard the components effectiveness, maintaining perfect system conditions and efficiency level and improving overall system performance.

The location of the pressure filters often exposes the housings to continuous pressure stresses that can reach high values. The filter development is done with a 3-Dimentional CAD system that utilizes computer simulations to develop stress calculations. These calculations are used to support the most appropiate choice of the materials and of the internal profiles of the castings to withstand the heaviest operating cycles.

User benefits:

main-line, high-efficiency, full-flow fine filtration for the protection
of precision valves and fluid-power proportional controls
high-performance, high-dirt-holding capacity, micro-fibre filter elements keep the cost of ownership (running-costs) low
between planned vehicle service-intervals
non-welded housing design for extended life and safer operation.

FPA – MDM

Pmax 11 Mpa

Qmax 50 l/min

Materials

Housing: Anodized aluminium alloy

Bypass valve: Brass

Seals: NBR Nitrile (FKM Fluoroelastomer - on request)

Indicator housing: Brass

Pressure

Max working: 11 MPa (110 bar)

Collapse, differential for the filter element (ISO 2941): 8 MPa (80 bar)

Bypass valve

Setting: 600 kPa (6 bar) ± 10%

Working temperature

From -25° to +110° C

FPA – MDM product example

FPA – MDM diagram

FPB – MHT

Pmax 42 MPa

Qmax 450 l/min

Materials

Head: Cast iron

Bowl: Steel

Bypass valve: Steel

Seals: NBR Nitrile (FKM - on request fluoroelastomer)

Indicator housing: Brass

Pressure

Max working: 42 MPa (420 bar)

Collapse, differential for the filter element (ISO 2941):
series standard 2 MPa (20 bar)
series H+ 21 MPa (210 bar)

Bypass valve

Setting: 600 kPa (6 bar) ± 10%

Working temperature

From -25° to +110° C

FPB – MHT product example

FPB – MHT diagram

FPC

Pmax 38,5 MPa

Qmax 120 l/min

Materials

Head: Cast iron

Bowl: Steel

Bypass valve: Steel

Seals: NBR Nitrile
(FKM - on request fluoroelastomer)

Indicator housing: Brass

Pressure

Max working: 38,5 MPa (385 bar)

Collapse, differential for the filter element (ISO 2941):
series standard 2 MPa (20 bar)
+ series 21 MPa (210 bar)

Bypass valve

Setting:
600 kPa (6 bar) ± 10%
350 kPa (3,5 bar)

Working temperature

From -25° to +125° C

FPC product example

FPD – MDF

Pmax 31,5 MPa

Qmax 400 l/min

Materials

Head: Cast iron

Bowl: Steel

Seals: NBR Nitrile
(FKM - on request fluoroelastomer)

Indicator housing: Brass

Pressure

Max working: 31,5 MPa (315 bar)

Collapse, differential for the filter element (ISO 2941): 21 MPa (210 bar)

Working temperature

From -25° to +110° C

FPD – MDF product example

FPD – MDF diagram

FPE – AMF – AMD

Pmax 1,2 MPa

Qmax 300 l/min

Materials

Head: Aluminium alloy

Spin-on cartridge: Steel

Bypass valve: Polyammide

Seals: NBR Nitrile
(FKM - on request fluoroelastomer)

Indicator housing: Brass

Pressure

Max working: 1,2 MPa (12 bar)

Collapse, differential for the filter element (ISO 2941): 400 kPa (4 bar)

Bypass valve

Setting: 170 kPa (1,7 bar) ± 10%

Working temperature

From -25° to +110° C

FPE – AMF – AMD product example

FPE – AMF – AMD diagram

FPG – MDS

Pmax 5 MPa

Qmax 400 l/min

Materials

Head: Aluminium alloy

Bowl: Steel

Bypass valve: Steel

Seals: NBR Nitrile (FKM - on request fluoroelastomer)

Indicator housing: Brass

Pressure

Max working: 5 MPa (50 bar)

Collapse, differential for the filter element (ISO 2941): 1 MPa (10 bar)

Bypass valve

Setting: 350 kPa (3,5 bar) ±10%

Working temperature

From -25° to +110° C

FPG – MDS product example

FPG – MDS diagram

FPH – TLM

Pmax 2 MPa

Qmax 400 l/min

Materials

Head: Aluminium alloy

Bowl: Steel

Bypass valve: Polyammide

Seals: NBR Nitrile

Indicator housing: Brass

Pressure

Max working: 2 MPa (20 bar)

Collapse, differential for the filter element (ISO 2941): 300 kPa (3 bar)

Bypass valve

Setting: 170 kPa (1,7 bar) ± 10%

Working temperature

From -25° to +110° C

FPH – TLM product example

FPH – TLM diagram

FPL – SPP

Pmax 31,5 MPa

Qmax 400 l/min

Materials

Head: Cast iron

Bowl: Steel

Bypass valve: Steel

Seals: NBR Nitrile (FKM - on request fluoroelastomer)

Indicator housing: Brass

Pressure

Max working: 31,5 MPa (315 bar)

Collapse, differential for the filter element (ISO 2941)

standard series: 2 MPa (20 bar)

H+ series: 21 MPa (210 bar)

Bypass valve

Setting: 600 kPa (6 bar) ± 10%

Working temperature

From -25° to +110° C

FPL – SPP product example

FPL – SPP diagram

FPM – SPM

Pmax 21 MPa

Qmax 120 l/min

Materials

Housing: Anodized aluminium alloy

Bypass valve: Steel

Seals: NBR Nitrile (FKM - on request fluoroelastomer)

Indicator housing: Brass

Pressure

Max working: 21 MPa (210 bar)

Collapse, differential for the filter element (ISO 2941): 2,1 MPa (21 bar)

Bypass valve

Setting: 600 kPa (6 bar) ± 10%

Working temperature

From -25° to +110° C

FPM – SPM product example

FPM – SPM diagram